66766067258 has 8 divisors (see below), whose sum is σ = 109253564640. Its totient is φ = 30348212380.

The previous prime is 66766067237. The next prime is 66766067261. The reversal of 66766067258 is 85276066766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66766067197 and 66766067206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517410598 + ... + 1517410641.

It is an arithmetic number, because the mean of its divisors is an integer number (13656695580).

Almost surely, 2^66766067258 is an apocalyptic number.

66766067258 is a deficient number, since it is larger than the sum of its proper divisors (42487497382).

66766067258 is a wasteful number, since it uses less digits than its factorization.

66766067258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034821252.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 66766067258 in words is "sixty-six billion, seven hundred sixty-six million, sixty-seven thousand, two hundred fifty-eight".